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  1. #1
    mathew stouffer's Avatar
    mathew stouffer Guest

    Default Island sink vent

    Dont see many of these. Is this installation correct

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  2. #2
    Join Date
    Nov 2007
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    Default Re: Island sink vent

    Not even close.




  3. #3
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    Default Re: Island sink vent

    Also referred to out here on the left coast as a "high loop" installation.
    (Nice graphics Ron)

    Jerry McCarthy
    Building Code/ Construction Consultant

  4. #4
    mathew stouffer's Avatar
    mathew stouffer Guest

    Default Re: Island sink vent

    The place was built in 1980, was has the installation tech changed since then.


  5. #5
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    Default Re: Island sink vent

    matthew,
    my 1976 u.p.c. has the verbage to go along with ron's illustration!


  6. #6
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    Default Re: Island sink vent

    My 1968 code book has the same illustration in it, just hand drawn though.


  7. #7
    mathew stouffer's Avatar
    mathew stouffer Guest

    Default Re: Island sink vent

    Thanks. The basement had an odor and I am sure this didn't help


  8. #8
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    Default Re: Island sink vent

    Nice image Ron. I saved that one for use with clients and for my own use.

    Jim Robinson
    New Mexico, USA

  9. #9
    Robert Schenck's Avatar
    Robert Schenck Guest

    Default Re: Island sink vent

    Through the magic of Photo Shop, this is how I see that set up. I can't see how the sink would vent correcty.

    Basically what I did was remove the looped piping and placed a cap on the top portion.

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  10. #10
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    Default Re: Island sink vent

    Quote Originally Posted by Robert Schenck View Post
    Through the magic of Photo Shop, this is how I see that set up. I can't see how the sink would vent correcty.

    Basically what I did was remove the looped piping and placed a cap on the top portion.
    Which is worse than what was there.

    At least originally there was the possibility that some venting might accidentally take place. You have now removed all that possibility.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  11. #11
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    Default Re: Island sink vent

    Quote Originally Posted by Robert Schenck View Post
    Through the magic of Photo Shop, this is how I see that set up. I can't see how the sink would vent correcty.

    Basically what I did was remove the looped piping and placed a cap on the top portion.
    Best to at least put an AAV valve in place of the cap.


  12. #12
    Robert Schenck's Avatar
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    Default Re: Island sink vent

    Guys, ... I guess I gave the wrong impression. I was NOT saying that the Photo Shop manipulation, verbage was my remedy and/or the correct way. I was saying (I meant) that it was just another way of looking at how the plumber could have messed up the job.

    Being a former electrician in the Navy, I would often have to figure out electrical problems by looking at schematics, ... visually removing (or adding) wiring and saying "Yea, it will work that way as well" - (Hope that made sense). That pic just gave me an opportunity to play around with Photo Shop.

    In its current state, I see no way of venting - even accidently. In my photo - I duplicated the problem, just piped differently and placed a cap on it.

    I absolutely agree a AAV should be installed. Sorry for the confusion


  13. #13
    Adam Goodale's Avatar
    Adam Goodale Guest

    Default Re: Island sink vent

    The air admittance valve would be the most cost effective remedy for that setup. Pretty much like how Robert did in his picture but with the aav on top.


  14. #14
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    Default Re: Island sink vent

    great pictures


  15. #15
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    Default Re: Island sink vent

    Quote Originally Posted by Robert Schenck View Post
    Guys, ... I guess I gave the wrong impression. I was NOT saying that the Photo Shop manipulation, verbage was my remedy and/or the correct way. I was saying (I meant) that it was just another way of looking at how the plumber could have messed up the job.
    I understood that, and that was why I posted what I did. That your image of capping it off would be worse than what is there now, as compared to what you were saying was your impression of the net effect (which was my way of saying the net effect as currently done is not as bad as capping it off).

    I absolutely agree a AAV should be installed. Sorry for the confusion
    That would be the easy solution ... unless you are in Illinois ... where AAVs are not allowed to be installed.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  16. #16
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    Default Re: Island sink vent

    Quote Originally Posted by Jerry Peck View Post
    That would be the easy solution ... unless you are in Illinois ... where AAVs are not allowed to be installed.
    And at least 10 other states that do not allow AAVs.


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